JNCIS-SP: Juniper Networks Certified Specialist – Service Provider Routing (2021) — Question 25

Click the Exhibit.

Route -

AS-Path -

Origin -

Local Preference -

Route 1 -

ISP 1 -
123 88 65512

I -
100

Route 2 -

ISP 2 -
678 651111

E -
100

Route 3 -

ISP 3 -
3245 6532 1231 65510
?
200

Route 4 -

ISP 4 -
65512

E -
150
You are receiving the same route prefix from four EBGP neighbors.
Based on the information provided in the exhibit, which route will be selected?

Answer options

• A. Route 4
• B. Route 1
• C. Route 2
• D. Route 3

Correct answer: D

Explanation

The correct answer is Route 3 because it has the highest Local Preference value of 200, which takes precedence in BGP route selection. Route 4 has a Local Preference of 150, Route 1 and Route 2 both have a Local Preference of 100, making them less preferred than Route 3.